Damn, Anthony's uninvited sudden appearance forced Kate's hand to reveal the biggest secret of unification. And he didn't even refute it, the man rolled with it, probably already expecting this move from her, and he was prepared. He even used the fact that the kids weren't drinking the brainwashing coffee to spin it as "GG lost his power". His speech and persuasion powers are never to be underestimated.
I guess Christopher never died after all. They escaped and plotted this for a long time? Or Anthony is borrowing another soot power to make it look like Christopher is still there. Or the more plausible possibility is that he used a morph to copy him and cooperate with him as a new "Christopher".
Holy crap, Kate got outplayed so badly here it almost feels like checkmate for her. Emilyko is brainwashed again. Even Candy too. The one adult in her corner has fallen to brainwashing. I expect Kate can bounce back, but she's maybe almost back to square 1 with this. We still have Louise, Douglas and maybe even Joseph in her corner.
This situation blew up a lot more than I expected it would. Anthony used Kate's efforts at freeing the kids from brainwashing to his advantage and then hijacked the children's wing through complacency with the supposedly now-safe coffee to stage his coup. It's a social engineering attack, using Barbara as the weak point in Kate's group to let him spread his influence, like a computer virus spreading to create a botnet from a tricked employee opening an infected email attachment. This is very bad.